The Chemistry of Photography


The Chemistry of Photography CONTENTS

Chapter I, The History of Photographic Chemistrypage 11

The camera obscura... effect of light on silver compounds... Wedgewood and Davy... Niepce... Daguerre... Fox—Talbot.

Chapter II, The Chemistry of Developmentpage 16

Functions of reducing agents (developers)... alkalis to permit the developing agent to reach all the silver salts... restrainers to make the developer selective... preservatives for long life of solutions... common developing solution troubles.

Chapter III, Fine Grain Developmentpage 22

Features of fine-grain development... reasons for special problems in this field... of rates of development on gelatin and on silver grains... avoidance of alkalis... high content of formulas... two typical formulas... chemicals suitable for fine grain development.
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